Chimera production release 1.10.2 is now available.
Fixes include code signing for Mac OS X installation.
The 1.10 series will be the last to support OS X 10.6 and 10.7.
See the release notes for details.

January 9, 2015

Chimera production release 1.10.1 is now available.
64-bit builds are recommended for all capable platforms, and the 1.10 series
will be the last to support OS X 10.6 and 10.7.
See the release notes for details.

November 5, 2014

Chimera production release 1.10 is now
available.
64-bit builds are recommended for all capable platforms,
and v1.10 will be the last to support OS X 10.6 and 10.7.
See the release notes for what's new.

UCSF Chimera is a highly extensible program for interactive visualization
and analysis of molecular structures and related data, including density
maps, supramolecular assemblies, sequence alignments, docking results,
trajectories, and conformational ensembles. High-quality images and
animations can be generated. Chimera includes complete documentation and
several tutorials, and can be downloaded free of charge for academic,
government, non-profit, and personal use.
Chimera is developed by the
Resource for Biocomputing,
Visualization, and Informatics,
funded by the National Institutes of Health
(NIGMS P41-GM103311).

The figure shows the four largest pockets by volume identified by
CASTp for PDB entry 1ovh (a cavity mutant of T4 lysozyme), shown in
yellow, orange, pink, and magenta in order of decreasing volume.
The largest is lysozyme's active site, with two openings.
The second largest is the engineered cavity.
Mutated positions are shown in red. Green balls are Cl– ions.